/*
 * ImageToolbox is an image editor for android
 * Copyright (c) 2024 T8RIN (Malik Mukhametzyanov)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * You should have received a copy of the Apache License
 * along with this program.  If not, see <http://www.apache.org/licenses/LICENSE-2.0>.
 */

package ru.tech.imageresizershrinker.color_tools.presentation.components

import android.net.Uri
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.rounded.AutoGraph
import androidx.compose.material3.MaterialTheme
import androidx.compose.runtime.*
import androidx.compose.runtime.Composable
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.ui.Modifier
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.unit.dp
import com.t8rin.histogram.HistogramType
import com.t8rin.histogram.ImageHistogram
import ru.tech.imageresizershrinker.core.resources.R
import ru.tech.imageresizershrinker.core.ui.widget.controls.selection.ImageSelector
import ru.tech.imageresizershrinker.core.ui.widget.other.ExpandableItem
import ru.tech.imageresizershrinker.core.ui.widget.text.TitleItem

@Composable
internal fun ColorHistogram() {
    var imageUri by rememberSaveable {
        mutableStateOf<Uri?>(null)
    }

    ExpandableItem(
        visibleContent = {
            TitleItem(
                text = stringResource(R.string.histogram),
                icon = Icons.Rounded.AutoGraph
            )
        },
        expandableContent = {
            Column(
                modifier = Modifier.padding(
                    start = 16.dp,
                    end = 16.dp,
                    bottom = 8.dp
                )
            ) {
                ImageSelector(
                    value = imageUri,
                    onValueChange = {
                        imageUri = it
                    },
                    subtitle = stringResource(R.string.image_for_histogram),
                    shape = RoundedCornerShape(16.dp),
                    color = MaterialTheme.colorScheme.surface
                )
                Column(
                    verticalArrangement = Arrangement.spacedBy(8.dp)
                ) {
                    ImageHistogram(
                        imageUri = imageUri,
                        modifier = Modifier
                            .padding(top = 16.dp)
                            .fillMaxWidth()
                            .height(250.dp),
                        initialType = HistogramType.RGB,
                        onSwapType = null,
                        linesThickness = 1.dp,
                        bordersShape = RoundedCornerShape(6.dp)
                    )
                    ImageHistogram(
                        imageUri = imageUri,
                        modifier = Modifier
                            .fillMaxWidth()
                            .height(250.dp),
                        initialType = HistogramType.Brightness,
                        onSwapType = null,
                        linesThickness = 1.dp,
                        bordersShape = RoundedCornerShape(6.dp)
                    )
                    ImageHistogram(
                        imageUri = imageUri,
                        modifier = Modifier
                            .fillMaxWidth()
                            .height(250.dp),
                        initialType = HistogramType.Camera,
                        onSwapType = null,
                        linesThickness = 1.dp,
                        bordersShape = RoundedCornerShape(6.dp)
                    )
                }
            }
        },
        initialState = false
    )
}